Purcelliana cederbergensis, Rodrigues & Rheims, 2020

Rodrigues, Bruno V. B. & Rheims, Cristina A., 2020, An overview of the African genera of Prodidominae spiders: descriptions and remarks (Araneae: Gnaphosidae), Zootaxa 4799 (1), pp. 1-80 : 38

Purcelliana cederbergensis sp. nov.

Figs 26D , 31 D–F

Type material. Male holotype from South Africa, Western Cape, Cederberg, Wupperthal , 32°16.674’S 19°13.157’E, 1 October 2009, E. Nortje & S. Kritzinger-Klopper leg., deposited in NCA 2012 /2014.

Etymology. The specific name refers to the type locality, noun in apposition.

Diagnosis. Males of Purcelliana cederbergensis sp. nov. resemble those of P. problematica by the palp with the embolus mostly straight ( Figs 31B, E ), but are distinguished by the lack of the median tegular projection (present in P. problematica ), embolus laminar and robust (tapering in P. problematica ) and dRTA massive, gently curved ventrally ( Figs 31 D–F). Females are unknown.

Description. Male (holotype). Carapace and legs orange, abdomen gray. Total length: 2.12. Carapace 0.95 long, 0.82 wide; Abdomen 1.06 long, 0.67 wide; Sternum 0.67 long, 0.54 wide; Spinnerets: ALS 0.13 long, 0.11 wide. Eye diameters: AME 0.06, ALE 0.06, PME 0.08, PLE 0.06; interdistances: AME–AME 0.03, PME–PME 0.02. Chelicerae 0.31 long. Leg measurements: II: 2.71 (0.70, 0.39, 0.54, 0.49, 0.59); III: 2.16 (0.55, 0.35, 0.42, 0.46, 0.38); IV: 3.04 (0.81, 0.40, 0.75, 0.60, 0.48). Leg I lost. Palp: vRTA smaller than dRTA; embolus distally sinuous; conductor narrow ( Figs 31 D–F).

Female. Unknown.

Distribution. South Africa, only known from the type locality ( Fig. 34 ).

Figures

FIGURE 26. Purcelliana kamaseb sp. nov., female: (A) habitus, dorsal view; (B) habitus, lateral view; (C) abdomen, dorsal view, detail of clavate setae. P. cederbergensis sp. nov., male: (D) chelicerae, frontal view. P. problematica, male: (E) habitus, dorsal view; (F) sternum and endites; (G) spinnerets, lateral view; (H) spinnerets, ventral view.

FIGURE 31. Purcelliana problematica, male palp: (A) prolateral view; (B) ventral view; (C) retrolateral view. P. cederbergensis sp. nov., male palp: (D) retrolateral view, bulb rotated (prolateral view); (E) ventral view, bulb rotated; (F) basal view, bulb rotated (retro-ventral view). C—conductor; dRTA—dorsal retrolateral tibial apophysis; E—embolus; LETe—laminar extension of tegulum; TeP—tegular projection; vRTA—ventral retrolateral tibial apophysis. Scale bars: 0.25 mm.

FIGURE 34. Known distribution records of species of Purcelliana from Namibia and South Africa.